XML 133 R114.htm IDEA: XBRL DOCUMENT v3.8.0.1
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Changes in valuation and qualifying accounts      
Removal of tax valuation allowance for expiration of net operating loss carryforwards   $ 3,000 $ 35,600
Removal of tax valuation allowance for Utilization of foreign tax credits   27,000  
Allowance for doubtful accounts      
Changes in valuation and qualifying accounts      
Balance at beginning of period $ 4,564 10,877 11,063
Charged (credited) to costs and expenses 1,564 103 49
(Deductions) Adjustments (3,789) (6,416) (235)
Balance at end of period 2,339 4,564 10,877
Tax valuation allowance      
Changes in valuation and qualifying accounts      
Balance at beginning of period 328,397 368,672 422,789
Charged (credited) to costs and expenses (3,016) (11,090) 1,824
Credited to other accounts 4,142 (29,185) (55,941)
Balance at end of period $ 329,523 $ 328,397 $ 368,672